Color-tunable arylaminoanthraquinone dyes through hydrogen-bond-assisted charge transfer interaction

Takashi Takeda, Yotaro Kasahara, Tomoyuki Akutagawa

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We prepared a series of arylaminoanthraquinone derivatives, including those with electron-accepting sulfone units and/or with electron-donating dialkylamino units. A color-tunable anthraquinone library that reached into the NIR region could be prepared through the precise control of frontier orbitals. Fine color-tuning was achieved through proper selection and positioning of the substituents. Effective intramolecular hydrogen-bond-assisted charge transfer interaction between electron-donating aniline/p-phenylenediamine and electron-accepting anthraquinone substructures induced a significant bathochromic shift of anthraquinone. The number and position of the substituents and the molecular conformation also significantly contributed to determining photophysical properties.

Original languageEnglish
Pages (from-to)24217-24231
Number of pages15
JournalRSC Advances
Issue number39
Publication statusPublished - 2021 Jul 5


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